Arbitrary file upload in Verizon Lvskihp Indoorunit

CVE-2022-28369

Verizon 5G Home LVSKIHP InDoorUnit (IDU) 3.4.66.162 does not validate the user-provided URL within the crtcmode function's enable_ssh sub-operation of the crtcrpc JSON listener (found at /lib/functions/wnc_jsonsh/crtcmode.sh) A remote attacker on the local network can provide a malicious URL. The data (found at that URL) is written to /usr/sbin/dropbear and then executed as root.

Vulnerability class: Unrestricted File Upload

EPSS: 0.014 (69.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-28369?
CVE-2022-28369 is a critical-severity vulnerability in Verizon Lvskihp Indoorunit, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2022-07-14.
How severe is CVE-2022-28369?
Critical severity. CVSS v3 base score is 9.8 out of 10.